Savannas and grasslands in drier climates around the world store more heat-trapping carbon than scientists thought they did and are helping to slow the rate of climate warming, according to a new ...

Whether in a desert, the savanna, or a tropical rainforest, plants have an important role in the ecological processes of Earth’s biomes. In this episode of Crash Course Botany, we’ll explore these ...

Between roughly 11,000 and 5,000 years ago, the Sahara received enough rain to sustain grasslands, savannas, and enormous lakes across terrain that is now among the driest on Earth. Sediment cores, ...